You must know the development history of coffee machine.

Incubation period: before 1900, the "perfect steam theory" of coffee extraction

In 1800, Archbishop Dabello of Paris invented the drop coffee pot.

In 1818, Dr. Romershausen patented an "extractor" in Prussia.

In 1822, Frenchman Louis Bernard Rabout obtained a patent that used the characteristics of ink absorbing paper combined with Dr. Romershausen's design to obtain a cleaner extract.

In 1824, Caseneuve, a Parisian craftsman, designed a coffee machine that was too complex to manufacture, hoping to avoid losing aroma.

Laurens 'patent in France in 1827 emphasized the need to moisten coffee powder with steam before coffee extraction.

In 1833, Samuel Parker, an Englishman, invented a pump to pump water up through coffee instead of down through it. (He noted, in particular, that the good taste of coffee comes first and the bitter taste is extracted later.)

In 1838, the Parisian optician Leburn designed a variety of small table coffee machines, which were very popular in southern Europe.

In 1840, Tiesset designed a vacuum pump to pull hot water down with extra force through the coffee powder.

In 1844, Cordier, a Frenchman, drew many coffee extractors in his patent application, one of which was very similar to Eicke's German machine 30 years later.

In 1847 Romershausen made a steam pressure coffee pot.

In 1855, French Loysel introduced a large-capacity bar coffee machine (about 4.5 meters high), claiming to make 10,000 cups of coffee a day.

In 1868, the Viennese Reiss developed a new type of "Vienna pot".

In 1885, Italian Angelo Moriondo signed a patent for coffee that could be made 50 cups at a time.

Childhood: 1901-1947, exclusive privilege of a cup of coffee at a time

In 1901, Luigu Bezzera patented a coffee machine designed by him.

In 1902, his friend Desiderio Pavoni added a pressure relief piston device to this machine and commercialized the machine for production and sale.

In 1903 Bezzern sold the patent to Pavoni for 10,000 lire due to financial difficulties.

In 1905, La Pavoni was founded.